Tube socket adapter for printed board



Jan. 2, 1962 A. PLAT ETAL 3,015,795

TUBE SOCKET ADAPTER FOR PRINTED BOARD Filed April 24, 195s (INSULATION) (nNeuLA-non) (meuLA-rmm) INVENTORS AUKE PLAT JOHANNES CHRISTOFFEL ANTONIE RECOUR'I nited Stats 3,015,796 Patented Jan. 2., 1962 TUBE SOCKET ADAPTER FOR PRINTED BOARD Auke Plat and Johannes Christoirel Antonie Recourt,

Eindhoven, Netherlands, assignors to North American Philips Company, Inc., New York, N.Y., a corporation of Delaware Filed Apr. 24, 1958, Ser. No. 730,632 Claims priority, application Netherlands May 17, 1957 4 Claims. (Cl. 339-17) The present invention relates to plate-shaped, apertured supports and to adapters secured to these supports, which adapters comprise studs or pins engaging two or more apertures of the support. These studs may be arranged in a pattern different from that of the apertures of the support. Such supports are widely used, for example in telecommunication apparatus, particularly apparatus for domestic purposes, and may then comprise a printed wiring. In general, the supports possess a great number of apertures and in several of these apertures, studs, for example of tube holders, coil holders and similar parts, are inserted. The pattern of the apertures of the support, also termed raster, is usually standardized. Such a support may be used for several types of apparatus, so that sometimes the apertures are not engaged by studs or other projecting parts. The pattern of the arrangement of the studs on the parts does not sometimes correspond to the pattern of the raster, since the rst pattern has to satisfy other requirements, for example in electrical respect. This is particularly the case with the pattern of the studs of electron-discharge tubes and consequently also of the associated tube holders. In accordance with the invention, in order for such adapters to be easily mounted to the support, an aligning plate, which is preferably thin relative to the support, is provided between said adapters and the support. The aligning plate is also furnished with apertures, the studs of the adapter engaging the apertures of said aligning plate so that their position at the under surface of the said aligning plate corresponds to the pattern of the apertures of the support accommodating the studs. The aligning plate may, for example, be provided in the course of manufacture of the adapter and is small relative to the complete support. Moreover, the aligning plate need not have a number of apertures exceeding that of therstuds or the adapter. Alternatively, a single type of aligning plate may be used for several adapters.

In one form of the invention, the apertures of the support are preferably arranged at the intersections of two sets of relatively parallel, equidistant lines at right angles to each other, while the apertures of the aligning plate are also located at the intersections of relatively parallel, equidistant lines at right angles to each other, the relative spacing of which corresponds'to the spacing of the lines on the support or is a whole number of times smaller or greater. By this form, the use of a single type of aligning plate relative to several supports or relative to several locations on the same support is promoted.

In another form of the invention, the aligning plate provides an indication, for example as a result of its form, for the correct arrangement on the support. In this case, the adapter itself need not have an indication; such indication being often diflicult to provide.

There are several ways to place the adapters on the aligning plates. Primarily, in one form of the invention, one or more studs or pins of the adapters occupy an oblique position. In a further form of the invention, one or more studs of the adapters are deformed.

In a still further form of the invention, a number of aligning plates are united to form strips prior to utilizaj tion. The aligning plates are interconnected through edges subject to rupture and the adapters being secured to the strip. They are transported and, if desired, stored in the form of strips. When manufacturing the parts mechanically, one and the same machine making the adapters may secure them to the strip and this may be effected continuously. Moreover, it has been found in practice, that the often very thin and flexible studs are less liable to damage during transport when secured to the strip immediately after manufacture. Moreover, adapters comprising strips can be packed more easily.

Furthermore, itis advantageous to secure the adapter rigidly to the aligning plate, for example by means of an additional stud. Alternatively, a part, for example a ilanged bushing, used in mounting the adapter, may be provided with a projection which may serve as a xture for the aligning plate.

In a further form of the invention, the support consists of a support or mounting plate provided with printed Wiring in telecommunication apparatus.

In order that the invention may be readily carried into effect, it will now be described in detail with reference to the accompanying drawing, in which:

FIG. l is a schematic diagram of a portion of a support plate of the present invention;

FIG. 2 is a schematic diagram of a series of apertured aligning plates of the present invention united to form a strip;

FIG. 3 is a plan view of an embodiment of a tube holder which may be utilized with the present invention;

FIG. 4 is a bottom view of the embodiment of FIG. 3;

FIG. 5a is a cross sectional view taken along line Va of FIG. 4;

FIG. 5b is a cross sectional view taken along line Vb of FIG. 4;

FIG. 6 is a side view of an embodiment of a tube holder which may be utilized with the present invention, with an aligning plate and oblique pins.

In FIG. l,v the reference numeral 1 designates a support or mounting plate provided with a printed wiring 1a at the back and with apertures 2. These apertures are all located at intersections of relatively parallel and equidistant lines with another set of relatively parallel and equidistant lines, which sets extend at right angles to each other. A tube holder as shown in FIGURES 3, 4, 5 and 6 is lto be inserted in the apertures 3 indicated in FIG. l by concentric circles.

FIG. 2 shows a strip 4 with a number of aligning plates separated by apertures 5. Only little material is lett between the aligning plates so that the plates may be easily sepanted from each oher by bending or ystamping away of the material. Since the plates are thin, the locations 6 are subject to rupture. The aligning plates are also furnished with apertures. The apertures 7 of the aligning plates are likewise located .at the intersections of two sets of parallel and equidistant lines extending at right angles to each other. The locations to be occupied by the studs of the tube holder are again indicated by concentric circles.

In FIGURES 3, 4, 5a and 5b, the reference numeral 8 designates the upper apertured plate of a tube holder connected by means of a flanged bushing 9 to a lower plate It). The tube holder comprises nine contact pins 11, 12, 13 clamped in part, as shown in FIGURES 5a and 5b, between the upper plate 8 land the lower apertured plate It) and which are split and embossed at their clamp ing point, in alignment with the apertures as shown at 11a, 12a and 13a, so that the studs of an electron tube (not shown) are held after placing them in the tube holder. As shown in FIGS. 5a and 5b on a larger scale,

side, the ends of the pins have the same pattern as that of the 'aligning plate shown in FIG. 2. In FIG. 5a, the pin 11 is deformed inwardly, whereas :the adjacent pins 12 and 13 are deformed outwardly with the result that the ends of the three pins are in alignment. In FIG. 5b the pin 12, as illustrated in FIG. 4, is bent outwardly .to place the ends of the pins 12, 13 in alignment. This permits the tube holder to be inserted in the aligning plate Lt. Subsequently, the assembly may be placed on 'the support plate 1 so that the straight edge 1 p of the aligning plate extends parallel lto the straight edge 4p of said support plate. Thereby, the mounting of the tube holder on the support plate is simplied and the pins 11 are no longer liable to damage during transport.

The tube holder shown in FIG. 6 again comprises an upper plate 8 and a lower plate l@ interconnected through a flanged bu-shing (n-t shown). instead of the pins being deformed, as shown in FIGS. a and 5b, the whole pin shown in FIG. 6 is arranged slightly obliquely, yas indicated by pins 14 and 15. In this case also the under surface of the aligning plate 4- is provided with protruding pins constituting a pattern corresponding to that of the support plate accommodating the tube holder.

The tube holder may be provided with an additional pin which is bent over yafter providing the aligning plate so that the latter is held. If desired, this additional pin 20 may `be a projection of the flanged bushing 9.

The invention has been described with reference to a support plate comprising tube holders, but it will be appreciated that it may also be used when providing coil containers and similar parts. The pins need not invariably be deformed but may have a little freedom of motion so as to permit insertion in the aligning plate without deformation. i

What is claimed is:

1. Apparatus comprising a support plate having a plurality of apertures therein, an adapter including an aligning plate having a plurality of apertures therein, and a tube holder having a plurality of pins with tube receiving apertures, the pins extending therefrom adapted to be inserted through selected ones of the apertures of said 'aligning plate and into selected ones of the apertures of s-aid support plate, said aligning plate including means indicating the correct position of said adapter on said supporting plate, said aligning plate being thin relative to said sup-port .plate and being positioned intermediate said tube holder and said support plate, said pins being shaped to collectively form one pattern at the said tube holder and to form a relatively different pattern at their insertion points in said support plate, and electrical conducting means mounted on the said support plate connecting selected ones of said apertures of said support plate.

2. Apparatus comprising a support plate having a plurality of apertures therein, an adapter including an aligning plate having a plurality of apertures therein, and a tube holder having a plurality of pins with tube receiving apertures, the pins extending therefrom adapted to be inserted through selected ones of the apertures of said aligning plate and into selected ones of the apertures of said support plate, said aligning plate including means for rigidly securing said tube holder and said aligning plate to each other, said aligning plate being thin reiative to said support plate and being positioned intermediate said tube holder and said support plate, said pins being shaped to collectively form one pattern at the said tube holder and to form a relatively different pattern at their insertion points in said support plate, and electrical Conducting means mounted on the said support plate connecting selected ones of said apertures of said support plate.

3. Apparatus comprising a support plate having a plurality of apertures therein, an adapter including an alibi ing plate having a plurality of apertures therein, and a tube holder having a plurality of pins tube receiving apertures, the pins extending therefrom adapted to be inserted through selected ones of the apertures of said aligning plate and into selected ones of the apertures of said support plate, each of said pins being positioned obliquetly to said aligning plate in a manner whereby they are inserted in said selected ones of said apertures of said support plate, said aligning plate being thin relative to said support plate and being positioned intermediate said tube holder and said support plate, said pins being shaped to collectively form one pattern at the said tube holder and to form a relativeiy different pattern at their insertion points in said support plate, and electrical conducting means mounted on the said support plate connecting selected ones of said apertures of said support plate.

4. Apparatus comprising a support plate having a plurality of apertures therein, an adapter including a tube holder and an aligning plate having a plurality of apertures therein, the apertures of said support plate and said aligning plate being positioned at the intersections of two sets of relatively parallel lines, the lines of each set of lines being equidistant from each other and the lines of one set of lines intersecting the lines of the other set of lines at right angles, said tube holder having a plurality of pins with tube receiving apertures, the pins extending therefrom adapted to be inserted through selected ones or" the apertures of said aligning plate and into selected ones of the apertures of said support plate, said aligning plate being thin relative to said support plate and being positioned intermediate said tube holder and said support plate, said pins being shaped to collectively form one pattern at the said tube holder and to form a relatively different pattern at their insertion points in said support plate, and electrical conducting means mounted on the said support plate connecting selected ones of said apertures of said support plate.

References Cited in the le of this' patent UNITED STATES PATENTS 2,206,799 Barton July 2, 1940 2,433,358 Garberding Dec. 30, 1947 2,578,288 Cook Dec. ll, 1951 2,651,833 Kernahan Sep. 15, 1953 2,771,663 Henry Nov. 27, 1956 2,825,881 Del Camp Mar. 4, 1958 2,830,278 Schwarz Apr. 8, 1958 

